The Dynamic HomeFinder: Evaluating Dynamic Queries In A Real-estate Information Exploration System

Abstract

We designed, implemented, and evaluated a new concept for visualizing and searching databases utilizing direct manipulation called <i>dynamic queries</i>. Dynamic queries allow users to formulate queries by adjusting graphical widgets, such as sliders, and see the results immediately. By providing a graphical visualization of the database and search results, users can find trends and exceptions easily. User testing was done with eighteen undergraduate students who performed significantly faster using a dynamic queries interface compared to both a natural language system and paper printouts. The interfaces were used to explore a real-estate database and find homes meeting specific search criteria.